part of vulval development cell fate commitment vulval cell fate commitment 2010-11-01T02:02:16Z The process in which the cellular identity of nematode vulval cells is acquired and determined. In nematodes, the vulva is formed from ventral epidermal cells during larval stages to give rise to a fully formed adult vulva, which is the egg-laying organ of female and hermaphrodite nematodes. mah biological_process GO:0072325